Hose.



G. A. ANSELL.

HOSE. l

PPLICATIUN FILED JUNE l5, |914.

1,178,484. Patented Apr. 11,1916. v

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GIEIOZRGE` ALBERT .ANSEL-L, OF TORONTO, ONTARIO,y CANADA, ASSIGNOR TO DULOI" TIRE & RUBBER GoonscoivrPANY, LiMITED, or TORONTO, CANADA.

Hos. l

Specification of Letters Patent. I Patented Apr. 11, 1916.

Application filed .T une 15,1914. Serial N 0. 845,156.

a protective jacket or coating which willl `ada-pt the hose particularly for the rough use to which hose is frequently subjected in mining operations or other hard service.

I attain my object by forming and apply.- ing to the hose a jacket of rubberized fabric in which the threads of the fabric exposed at the surface are mainly normal to the surface of the jacket thus presenting their ends instead of their lengths at the said surface.

This jacket is formed and applied in the:

manner hereinafter described and illustrated in the accompanying drawings in which- Figure l is a perspective view illustrating the method of forming the protective jacket; Y

Fig. 2 a development o-f the'cylindrical surface of Fig. l; Fig. 8 a perspective View of a portion of the strip of which the' jacket is formed; and Figl a perspective view of a portion ofthe finished hose.

In the drawings like letters'of reference indicate corresponding parts in the different figures.

In constructing the protective jacket I first build up on a cylindrical mandrel a plurality of plies l of ordinaryrubber impregnated fabric preferably the duck commonly employed in hose and rubber tire construction.

-The fabric may be applied in successive layers or by the simple process of wrapping it on the mandrel until asuflicient thickness has been built up. A suiicient number of layers or pliesare so built up on the mandrel as to form a thickness of preferably about one half inch. The roll of fabric is then Vspirally cut to form a strip 2 preferably about one eighth of an inch thick.I and of a width equal to the thickness of the fabric as built up on the mandrel. This strip 2 when straightened out appears as shown in Fig. 3.

Owing to the method of cutting, only the ends of the threads of the fabric appear at the surfaces of this strip as will appear o-n reference to Fig. 2 which is a development of the surface of the roll of fabric built up on the mandrel as illustrated in Fig. 1.

In Fig. 2 the lines a represent the lines of the spiral cutting',v and the lines and c threads'of the fabric.

If the fabric be applied as shown with one set of threads running lengthwise of the mandrel and the other set of threads running circumferentially round the mandrel one half ofthe threads of the fabric will lie normal to the surfaces of the strip shown in Fig. V3,the other threads though showing only their ends at the surfaces of the strip extend diagonally through the same. If the I fabric were applied on the bias to the mandrel shown in Fig. l, all the threads would extend diagonally through the strip, their ends only showing at the surfaces. After the carcass of the hose has been built up a strip formed as directed is wound spirally about it, the edges of the strips butting as shown, with one of the cut surfaces of the strip forming the exterior surface of the hose. When the completed hose has thus been built up itis subjected to vulcanization in the usual way.- The acket thus in effect becomes an integral part of the hose, andthe edges `of, the strip forming the jacket becomes also in e'ect integrally united.

From the construction described it will be evidentv that no fabric is exposed at the external `surfaces of the jacket in such a` manner that the threads may be caught and torn by rough 'surfaces with which the hose may Contact. This makes the hose exceedingly valuable for use in mining voperations where the hose necessarily has to be dragged over rough rocky surfaces which are liable to cut and tear the surface of the hose. I have demonstrated by careful experiment that a' protectivenjacket, .such as described, adds very materially to the life of the hose, owing to the resistance to wear of the endgrainy liber.

While I. find it preferable to formthe Y jacket on a mandrel it will be evident that it may also be formed on the Het and cut impregnated textile fabric displaying the into stra-ight strips, which could then be ends of threads at the exterior surface of spirally Wound on the hose in the same manthe jacket. nel' as the spirally out strips formed on the Toronto, this 1st dey of June, A. D. 1914.

. mandrel.

What I claim as my invention is: GEORGE ALBERT ANSELL' Hose provided with a. jacket comprising In the presence ofa strip spiially Wound on the hose with its J. EDW. MAYBEE, edges butting, said strip comprising rubber Y E. P. HALL.

Copies of this'patent may be obtained for five cents each; by addressing the Commissioner of Patents,

Washington, D. G. 

